Optical: systems and elements – Deflection using a moving element
Patent
1992-09-30
1994-05-03
Kwon, John T.
Optical: systems and elements
Deflection using a moving element
359216, G02B 2608
Patent
active
053092708
ABSTRACT:
An optical scanning system for use in a laser printer, including a first light receiving section for controlling a scan timing and a second light receiving section for controlling the amount of scanning beam. The first light receiving section is composed of two light receiving elements, wherein they are disposed remote from each other at outsides external to both ends of an effective scan field. The second light receiving section is a single light receiving element disposed in close proximity to either of the first light receiving elements in the same scan plane. In the system, there is further provided a laser beam splitter between a light source and the combination of the first light receiving element and the second light receiving element for diffracting the laser beam into the 0th order light and the +1st order light, the former entering the first light receiving element whilst the latter entering the second light receiving element.
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patent: 5210634 (1993-05-01), Iwama
Fuji Photo Optical Co., Ltd.
Kwon John T.
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